Harness-snap.



PATENTED MAR; 3, 1903.

ELL. MARANVILLE.

HARNESS SNAP.

APPLICATION FILED MAR. 22, 1902.

N0 MODEL.

UNITED STATES PATENT OFFICE.

EGBERT L. MARANVILLE, OF POULTNEY, VERMONT, ASSIGNOR OF ONE-HALF TO FORDC. WARREN, OF POULTNEY, VERMONT.

HARNESS-SNAP.

SPECIFICATION forming part of Letters Patent No. 721,815, dated March 3,1903.

Application filed March 22, 1902. gerial No. 99,474:- (No model.)

To ttZZ whom, it may concern:

Be it known that I, EGBERT L. MARANVILLE, a citizen of the UnitedStates, residing at Poultney, in the county of Rutland and State ofVermont, have invented a new and useful I-Iarness- Snap, of which thefollowing is a specification.

This invention relates to snap-hooks; audit consists in a hook having arecess near the extremity or free end and with a recessed wheel or disk,of rubber or other suitable flexible material, mounted revolubly in acavity in the shank of the device and adapted to engage the hook outsideof the recess,wherebya yieldable closure is provided for the inlet tothe hook, which will prevent the accidental removal of the strap or ringheld thereby, and means provided for the protection of the disk from theback pressure from the ring or strap held by the hook.

The invention further consists in certain novel features of theconstruction, all as hereinafter shown and described, and specificallypointed out in the claims.

In the drawings illustrative of the invention, Figure 1 is a perspectiveof the device complete. Fig. 2is a longitudinal sectional elevation.

The body of the device consists of the shank or stock 10, having theusual loop 11 for the reception of the holding-strap, and with thebackwardly-bent hook portion 12, of the usual shape. The point or freeend of the hook is formed with a recess 13 in the under side just in therear of its outer end, as shown, and in the stock 10, opposite thisouter end, is located a recess or socket 14:, with a large opening atits inner end and with a smaller opening 15 at its outer end, as shown.Within this socket 14: is journaled a spur wheel or disk 16, of rubberor other suitable flexible material, with its points or teeth adapted toengage the under side of the end of the hook outside of the recess 13.

The portion of the hook outside the recess 13 engages the recesses inthe disk 16, which thus serves to maintain the disk'against the ordinaryback pressure 01' strains to which it would be subjected by the strap orring from within the hook, but would yield to a force sufficient toremove the strap or ring.

The recess 13 is an important feature of the invention, as it forms asocket into which the strap or ring will be guided in event of anyrearward movement caused by the slackening up of the strap or ring, sothat all such back pressure or movement will be borne by the metal ofthe hook and the yieldable materialof the disk 16 relieved from all backpressure while in use. By this simple means the ring or strap held bythe hook will not be accidentally detached when in use.

It will be observed that the extreme point of the hook 12 will at alltimes engage between two of the teeth of the elastic spur-wheel 16, sothat the latter will be kept from accidental rotation or displacement.Reversely,when it is desired to either insert a harness-ring into or toremove it from the snap-hook it may be placed in engagement with theteeth of the said spur-wheel16,when by pressure exerted thereon thelatter will be readily caused to yield in the desired direction. At notime are the teeth of the spur-wheel out of contact or out of engagementwith the point of the hook, and accidental displacement of a ring fromits engagement with the said hook is impossible.

The hook will be made of various sizes to adapt it to the variouspurposes for which snap-hooks are employed, as this device is adaptableto any snap-hook now in use.

The slot or opening 14, in which the spurwheel 16 is journaled, preventsthe accumulation of obstructions, such as dirt or mud, which would beapt to settle therein if the said socket were closed at its lower end.The peculiar spur shape of the flexible wheel 16 also assists inremoving any obstructions that may enter into the said slot.

The end of the hook 12 which engages the yieldable member 16 may beenlarged into a ball, if preferred.

Having thus described the invention, What is claimed is' 1. In asnap-hook, the combination with the slotted stock having a hook formedthereon, of a disk journaled in the slot of the stock and'havingyielding, flexible teeth engaging the point of the hook, substantiallyas set forth.

2. A snap-hook comprising a slotted stock or body having a hook formedthereon and a ICO 10 such spur-wheel but permitting of the rotation ofthe latter by the yielding of the teeth thereof, substantially as setforth.

In testimony that I claim the foregoing as my own I have hereto aifixedmy signature in the presence of two Witnesses.

EGBERT L. MAR ANVILLE.

\Vitnesses:

O. C. WALKER, J. L. CLARK.

